I just got the new motor in and I was driving and noticed that the oil pressure gauge was at nearly zero in 5th gear- barely budged when put in neutral- had bneen driving the car for a bit so it warmed up. When initially strated the needle was at the top at 120. any thoughts?
-Jon

 

Stock gauges suck IMO. My oil pressure gauge is all over the place. I have a new engine as well and I noticed that sometimes it drops down a lot but mostly just sits at around the middle.

 

was the pressure sender unit replaced with the engine? Try pulling it out and cleaning it.

 

Good idea- thanks.
now to pull out the trusty ( and small print) rx7 manual to find this!

 

The sender is located directly below the oil filter - try cleaning just the wire connector first - that fixed my jumpy oil pressure gauge prob.

 

sounds like a bitch to get to- I just did an oil change on her yesterday and it was a pain just getting the filter out! can you get to the unit with the filter in place from on top?